Improvement in sail-hanks



D. G. LOW.

Improvement in Sail Hanks.,

No. 125,744. ParentedAprmensn.

UNITED STATES l). GRANVILLE LOW, OF CHELSEA, MASSACHUSETTS.

IMPROVEMENT IN SAIL-HANKS.

Speciiicationforming part of Letters Patent No. 125,744, datedApril 16, 1872.

To all to whom these presents may come:

Be it known that I, D. GRANVILLE LOW, of Chelsea, in the county of Suffolk and State of Y Massachusetts, have made a new and useful or Improved SaiLHank; and do hereby declare the same to be fully described in the foli lowing specication, and represented in the accompanying drawing, in Which- Figure l is a top view of a hank as constructed in accordance with my invention, the same being represented as closed. Fig. 2 is a similarlview ofthe same as open. Fig. 3 is a central and longitudinal section; and Fig. 4, a side view of the said'invention. Fig. 5 denotes a hank as ordinarily constructed.

The object of my invention is t'o provide a simple, substantial, and effective device for connecting a jib or stay-sail With its stay;7 one which can be readily applied to the stay and sail or removed therefrom with far greater facility and ease than the hanks as ordinarilyemployed. My improved hank is intended as asubstitute for the common iron hank now in use on vessels of every description `which employ jibs or stay-sails, and are rigged with Wire.

ropes or stays. The objections to hanks of the ordinary construction are that they in-` volve too great an expenditure of time, labor, and expense in seizing or lashing them to the stay and sail; and, besides, the lashings often become chafed and broken, whereby the sail is rendered loose and ilappy, and, the hank becoming disconnected, is often lost. My invention completely obviates such evils. The nature of .my invention consists in the peculiar construction and arrangement of the several parts as hereinafter described, Whereby all lashing-yarn or seizing is dispensed r with, and a non-detachable lockingbolt used in place thereof.

In the said drawing, A denotes the body of the hank, which consists of a U-shaped metallic bar. B is the locking-bolt, which passes transverselythrough a hole, o, in the lower ends of the arms a a of the hank. The

said bolt, at its outer end, is provided with a head, b, While its inner end is furnished with a short stud or projection, o, extending from its periphery and at a right angle to its axis. Within the inner face of the arm a, and just above the Ybolt-hole thereof, is a socket or re cess, d, to receive the projection c of the bolt when the latter is drawn back into the position as shown in Fig. 2, in order to afford a free and unobstructed entrance to the eye of the hank. The said stud c is to be affixed to the bolt after the same has been passed through the arm a, as such arm has no slot to enable the bolt to be introduced after the stud has been secured to the bolt; the said pin 0r stud so affixed serving, as one of its functions, to prevent the bolt from being drawn out or becoming detached from the body of the hank. There is also formed in the arm a', and above the bolt-hole thereof, a transverse and parallel groove or channel, e, for the stud of the bolt to pass through. The said arm has also a socket, f, made in its outer face and be- 10W the bolt-hole, the same being of suilcient depth to receive the said stud, and thereby lock the bolt to the hank. g is a helical spring, which is coiled around the shank of the bolt, one end resting against the head thereof, and the other against the arm a, the object of the said spring being to maintain the stud of the bolt in the socket f when the hank is closed, and permit the same to be readily unlocked and the bolt withdrawn whenever it may be desirable.

My improved hank may also be employed to good advantage as a shackle for blocks and various other appliances used on shipboard.

Having described the nature and construction of my improved hhank, its operation is as follows: In applying a sail to its stay by means of my improved hank, the bolt of the hank'is to be drawn back or brought into position, as shown in Fig. 2. The arms of the hank are next made to straddle the Wire rope or stay. The eyeleted edge of the sail is next to be drawn up to the stay and between the arms ofthe hank, and so that one of the thimbles or eyelet-holes shall be in line with the axis of the bolt, when the latter is to be forced through the same and the arm a. The bolt is next to be rotated one hundred and eighty degrees, so that the stud of the bolt will enter its socket in the said arm, the same being retained therei in by the expansive power of the spring.. In

removing or unlocking the hank from the stay7 and sail, we irst push inward the bolt a sufficient distance to withdraw the lockingstud from its socket, and next rotate the bolt one-halt` of a circle, or until the stud comes in line with the channel e, when the bolt may be retracted and drawn back into the position esv shown in Fig. 2, When the bank may be readi- 1y removed.

From the above it will be seen that :t henk constructed in my improved manner is one of great utility for the purpose designed, it being simple, strong, and reliable, not liable to get out of order, can be readily applied in the roughest Weather, and is very durable.

Having described my invention, what 1 claim 1s- The above-described impf'roved sail-bank, consisting of the body A, provided with the bolt-receiving hole o, groove e, and socket f, and the bolt B, furnished with the stud c and the spring g, combined and arranged in manner and so as to operate as set forth.

D. GRANVILLE LOW.

Witnesses:

F. P. HALE, F. C. HALE. 

